Details

Reviews (27)

Q & A (18)

What's in the Box

Info

Dual feed master cylinder with 2 bolt flange style mount. Use with Speedway brake pedal assemblies. This cylinder is similar to those used on mid-70's Fords (Mustang, Fairlane/LTD, etc. with disc front/drum rear).

breaking news

dual feed Master Cylinder

December 21, 2015

This is the second MC from speedway. The first one was purchase a year or so before installation and lasted 733 miles before the pedal hit the floor while my wife and I were cruising in my 29 roadster. We were fortunate enough to be able to stop the car with the e brake. The piston/cup assembly made a catastrophic failure.

Merchant Response:

Mad Jack- Thanks for taking the time to write us! Your review has been forwarded to our Quality Control Department for their consideration. Please let us know if there's anything else we can do to assist.

Groovy Owner of Groovy's Garage

Verified Purchaser

Verified Reviewer

Sardis ms

my truck stops now

First one was junk

August 03, 2015

Bought the same unit over a year ago. Project delays caused me to not install it right away. The first unit would not work right out of the box. Replaced it with the exact model and the second one appears to work fine.

Product Q&A

THE SPACE IS TIGHT ON THE RIGHT SIDE OF THE MASTER, DOES THTHIS COME WITH THE LINES ON THE LEFT SIS COME WITH THE LINES ON TE LEFT SIDE(driver side)AS AN OPTION?
my application is a 1946 Ford Woodie with stock pedal assembly. Is there a workable MC with the lines on the left? I have disc front and stock drum rear

woodiejim

Montana

January 17, 2015

THE SPACE IS TIGHT ON THE RIGHT SIDE OF THE MASTER, DOES THTHIS COME WITH THE LINES ON THE LEFT SIS COME WITH THE LINES ON TE LEFT SIDE(driver side)AS AN OPTION?
my application is a 1946 Ford Woodie with stock pedal assembly. Is there a workable MC with the lines on the left? I have disc front and stock drum rear

Answers

January 19, 2015

EricM

This master cylinder only has the fluid outlets on one side. We do offer master cylinder 91031445 which has outlets on both sides. You simply plug off the unused ports.

1 answers

check valve
Does this MS have a check valve internally? Someone told me if I have it mounted under the floor it may need one. I have drums on all 4 wheels with adjustable proportion valve. thanks
I bought this MC from you guys and installed it 2 months ago. Now the pedal went to the floor with no leaks anywhere.. I believe the previous MC was the same model. The rod went all the way thru and got stuck. I couldn't remove it from MC

Scooterville

Maryland, USA

September 29, 2014

check valve
Does this MS have a check valve internally? Someone told me if I have it mounted under the floor it may need one. I have drums on all 4 wheels with adjustable proportion valve. thanks
I bought this MC from you guys and installed it 2 months ago. Now the pedal went to the floor with no leaks anywhere.. I believe the previous MC was the same model. The rod went all the way thru and got stuck. I couldn't remove it from MC

what is the travel on the rod? right now the pedal is hitting the floor and seems like theres not enough brake

what is the travel on the rod? right now the pedal is hitting the floor and seems like theres not enough brake

Answers

August 26, 2014

EricM

With full pedal travel and still insufficient brakes it appears you still have air in the system. You may want to check the master again and bench bleed for air in the cylinder. Once done you can recall the push rod travel and relay to the pedal to see if the rod is adjusted for full stroke. Elevate the rear of the car and bleed the rears and then the same with the front while tapping on the lines with plastic handled screw driver. When correct it should take less than half of the pedal travel.

1 answers

push rod install
how does the push rod install into the master cylinder

Abbegale

Ontario, Canada

August 17, 2014

push rod install
how does the push rod install into the master cylinder

Answers

August 19, 2014

EricM

The pushrod has a ball and snap ring installed on the end. Once pushed into the master cylinder it will engage the piston and the snap ring will collapse, then expand into the snap ring groove locking it in place.

1 answers

I'm planning a conversion to front discs on my 1949 Chevy pickup. Will this unit work for me?

Johnny49

CT

July 22, 2014

I'm planning a conversion to front discs on my 1949 Chevy pickup. Will this unit work for me?

Answers

July 23, 2014

EricM

The snap ring that retains the piston in the cylinder bore is definitely required. The spring plate or star pattern retainer is not required but helps keep the push rod in place. Take the boot off if so equipped and then re install after the push rod is in place. The push rod retainer itself will stay in place if the linkage is adjusted correctly so as not to allow the rod to fall out under severe braking requirements.

1 answers

If i have disk in front and drum in the rear what reservoir will i have to the disk

tompa

Sweden

February 09, 2014

If i have disk in front and drum in the rear what reservoir will i have to the disk

Answers

February 10, 2014

EricM

The larger reservoir is always used for the front brakes. On this master cylinder use the port closest to the mount flange for the front brakes and the port furthest from the mount flange for the rear brakes.

1 answers

what brake fluid is recommended for this master cylinder?
i just dont wanna put the wrong fluid in?

phone01

Arizona, USA

October 11, 2013

what brake fluid is recommended for this master cylinder?
i just dont wanna put the wrong fluid in?

Answers

October 14, 2013

Jason

Speedway recommends the use of DOT 3 or 4 brake fluid with this dual feed master cylinder.

1 answers

Will this fit a 1947 Ford and be an exact replacement for the stock Master Cylinder?
I am in the process of installing disc brakes on my fat-fendered 47 Ford. I want to replace the single feed master cylinder with a double feed. Is this the one I need? Will it fit without any modification and let me use my existing brake pedal? Thank you.

dennis7

Lincoln, CA

January 04, 2013

Will this fit a 1947 Ford and be an exact replacement for the stock Master Cylinder?
I am in the process of installing disc brakes on my fat-fendered 47 Ford. I want to replace the single feed master cylinder with a double feed. Is this the one I need? Will it fit without any modification and let me use my existing brake pedal? Thank you.

Answers

January 04, 2013

Jason

This master cylinder will NOT be a direct replacement for your 1947 Ford master cylinder. If you currently have the original master cylinder it will have a 3 bolt mounting flange to mount it to the car and this master cylinder from the 70’s is a horizontal 2 bolt mounting. You will need to acquire a 3 to 2 bolt adapter plate available from Sacramento Vintage Ford in order to mount the newer style master cylinder. Bore size is 1” as compared to the original 1 1/16” but this will help with pedal pressure requirement for the disc brake conversion.

Is this a good replacement on my bucket t, mine is leaking and has a soft pedal action??

Is this a good replacement on my bucket t, mine is leaking and has a soft pedal action??

Answers

April 02, 2012

John

This master cylinder is commonly used on T buckets including the kits we offer at Speedway Motors. Outlets may vary from what you currently have and require an adapter fitting. Remember the large reservoir always goes to the front brakes and that the piston needs to return all the way to the snap ring in order to get proper functioning brakes. Always bench bleed the master cylinder before installation.

You may also be interested in:

Designed for a clean and simple install onto Model T, Model A, and 1932 Ford frame. The included 1" bore remanufactured master cylinder is suitable for 4-wheel disc or disc/drum brake setups. The outlet ports are 3/8"-24 IFF. The bracket can be bolted or welded to the left frame rail (boxed or stock).

Kit includes a dual feed master cylinder, frame bracket, and a steel pedal arm w/ pad that can be easily modified for driver comfort.

Note: Will NOT work in conjunction with the factory clutch pedal. Intended for use with an Automatic Transmission.

Brake fluid can ruin your master cylinder in just a few years. Stop the problem by using a stainless steel sleeved master cylinder. Our new sleeved dual feed master cylinder will work with most disc/drum combinations.

No more pitting in the bore

1" bore

Popular 3/8"-24 inverted flare ports

3/16" brake line will screw right in

Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.

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